Lamp fixture



Oct. 4. 1927.

w. H SPENCER LAMP FIXTURE Filed March 4, 1926 2 sheets sheet l INVENTOR v W/u lflM H. JPi/VCER wl'mess Oct. 4,

w. H. SPENCER LAMP FIXTURE Filed March-4; 1926 2 Sheets-Sheep 2.

- mvsmoa WALL/AM H. SPF/V627? Paeaed a. 4, 1927.

' "WILLIAM H. srnnoaaor sworn, NEW" JERSEY, AssIGNon' To 1. r NEW YORK, n. Y., A conronarroer on NEW YORK.

. ERINK 1nd,: or

LAMP FIXTURE.

I f This invention: relates more especially to lamp-fixtures in which the completely finishedparts andfsections which go toimake up at will. 1 V

The primary object of myinventlon is to provide an improved construction combination and arrangement of parts in a lampjfixture of this character whereby J the number of, parts and sections of different kinds, may be reduced to a minimum so asto enable it to be more economically constructed, more expeditiously assembled and whereby the transportation of such fixtures; may greatly facilitated without sacrlficing ts utilitarian or ornamental qualities. Toward the attainment of these. objects,

myinventioncontemplates an improved organiza'tion of parts and improved "adjustable connections therefor to provide an 1mproved interchangeability of said parts, to

facilitatetheir replacement, and withalyto increase their variablerelationships.

, Oneof theob'je'ct-s of myinvention is to provide an improved connection head for variably and rele'asably unitmg the'framemembers or bracket arms of a lamp fixture. Specific objects of invention will appear in thespecification andbe pointedout in the appended claims in connection-with the accompanylng drawings' which illustrate certain; preferred adaptations of my'invent on. V

In the drawings, I 1 1 Flgnre 1 1s a s1de elevatlon of a suspension lamp constructed 1n accordancejwlth the principlesd'of the present "inventiony.

Figure 2 is an enlarged vertical section ofthe lowerpart of Figure 1, parts being from sheet metal; 7

Figure 8 is a side elevation of another j'embod ment of my'1nvent1on; j

the whole, may be assembled or dismantled slots, is a thimble 7"halving a bore ends of the" necti on-hea'd t'he separated parts of Application filed narcaeiieas. Serial nm aagaso.

Figure 9 is a side elevation (if another embodiment of'niy invention; 1 V v Figure 10 is a detail of a modiiied 'formof frame-member. V V Referring to the mbodiment or l'i'iyinvem tion shown in Figuresl', 2; .35 4,5, Gtjf the drawings, 'a' depending eye-bolt l fser-vje' as an anchorage jfor 'a chainj2 from which is susp'ended an eye-bolt ll1e 'eye-bolt ,is provided withscrew tl1'reads,alamp socket 4 being 't-hreadedtheret'o for the reception df al'amp 4 Carried bythe shank o'fieye bolt I 8 and arranged abovethe' lamp socket 4 is. an annular block 'or'cylinder shown ,i'n'detjalil in Figure 3, said cylinder being provided with radial slots opening thru' "cne'endthereof and extending Ito ani unslo'tte d anna; I v

endflp 'jrt'i'on 6 at the "other er id"thereof; Extending axiallythru 'Sl tte bljtlc'li, and closing the innerends ioflsaid fradial I which fitsthe shank of said eye-bolt saidthiinble b ing provided with a reduced upper end 8; forrotatably.mountinga Capt); Theffca'pQi is provided with a depending peripheral 80 flange '10 which extends across"the 1'1pperi peripheral fopeningsfformed the radial s'lo'ts- 5'in thejannularblocki fiangelO is, provided with a notch llfwhich may be move'din'to refgiste iwith anyone of sjaid peripheral openings in the sllitted'l block so as to admit one end of'abrfa cketarm frame-member to be presently described?" The slotted cylind'enrotary cap 9, and thim ble7 constitute the upper connection-head; a' ring" nut fbeingthreaded to;the lower end of the-stud 3 for retain'ingjsaid .con

'nect'i'on head in position ontheeye-bdlt. As-

shown in Figures 1', 2 and hith'e; lamp g'fra'rne; includes fra1ne members13 which havegt upper ends interlocked-with the'upper co nection-head, and their lower ends lockedwitha lower'connecti'on-head tifso fewhat similar constructionf*Said lowe' co are shown in perspective in Figure G 0' m prises an annular block 'or'cylin'der'f i vided with radial slots l5 in oneendt a bottom cap '16 with 2 1 upwardlygpr ted peripheral flange 17, and a split wa'sher"18; which is interposed between'said bottom capj 7 16 and an annular enlarge ent'lg of a stud 7 bolt20. Said studbo'lt -QOiS"provided 'jw ithf. a reduced end 21 which'is' threaded intojftannular un'slotted (portions 14:. eit the al 6 antennae *fbl'ock *provided w ith a 'not'c h and a" c ap r.o' tatable thereonina' fixed planeQfsaid: leap having :a' notch movable into A registry with "the notch -in-' sarid 'bloclt *to admit the 'other end of sa=i"d"'-bracket ar-nr "and "out ot' registry therewith to lock said -other en'd against-Edisp ceme I a. r

4 I-n a lamp fixture the combmatmn w th a bracket-supporting block 'provlded with a slot in a flat end wall thereof, said slot having an opening at the outer edge 0t sa d block, a cap movably connected to sald block and provided with aflange slldably contacting with said flat end wall, said flange being provided with a notch movable' into and out of register with said slot, and a bracket-arm having one end provided with a cross section substantially fittlng the combined opening formed by sa1d slot and notch in register and wlth a reduced adjac'ent cross-section substantlally fitting the opening corresponding to the slot alone said bracket-arm being locked in said'blo'ck by said flangewhen said notchis moved out ot register withthe slot therein.

5. In a lamp fixture, the combination with a cylindrical bracket-supporting block pro ,vided with radial slots opening rad ally 7 thru the periphery of said block and axially thru a flat end wall thereof, of a rotary cap coaxial with said block and having a c1rcular flange slidably contacting with the slotted flat end wall of said block, said flange being provided with a notch movable into and out of register with each of the slots in said block; and a bracket-arm provided at one endwith a cross section substantially equal to the opening formed by one of said slots and said notch combined and adjacent thereto with" a cross'section' substantially equal to the cross-sectional area i i of the slot alone.

6. In a lamp fixture, the combination with axially-spaced cylindrical bracket-support ing blocks provided with radial slots opening radially thru the peripheries of said blocks and axially thru flat end walls thereoi, of a rotary cap coaxially connected to said slots,

said slots and each of said blocks and having a circular flange slidablycontacting-with the flat end wall thereof and provided with a notch movable into and out of register with anyone of and a bracket-arm having its opposite ends provided with crosssections substantially fitting the openings formed by notches when in register and with reduced cross-sections adjacent thereto substantially fitting the cross-sectional areas of the slots alone whereby said bracketarm may be locked at opposite ends within said blocks when said notches are moved out of register with said slots.

"1' In a lamp fixture, the combination with axially-spaced coaxiallyarranged connecof said connection-heads wardly prcsented shoul'derhaving aabraclret-arm recess provided with -an toutwardlypresentedi opening aiidiza rr-in '1 scent t-d-said opein ngy of a bracket-arm provided -==adj iaficent :one end with a 'cross se'ction approximately fittin-g tlre recess openingyot 'one of -said con being adapted to bemoved into and out of interlocking engagement with said conne c tion-head at that end by a swinging move ment about the latter, the other of said connection-heads I being provided with a swivelled cap having a flange interlocking with the other end of said bracket-arm and provided with a notch permitting the introduct-ion and removal of thatend. V

8. In a lamp fixture; the combination with axially-spacedcoaxially-arranged connection heads, vone of said connection-heads having a bracket-arm recess provided with an'inwardly-presented shoulder and the otherof said connection heads being provided with a swivelled cap having a flange provided with a notch. of abracke-tearm provided adjacent I one end with a cross-section approximately fitting the recess opening of the first-men tioned connection head and with an upwardly presented abutment adapted to interlock with said shoulder, saidnotch being adapted to permit the introduction and removal of' the other end of said bracket-arm into and i0 1' out of position to be engaged by said flange .9. In a lamp fixture, the combination with axially-spaced coaxially-arranged connec tion-heads, each of said connection-heads having a bracket-arm recess provided with an outwardly presented opening and an in-' wardly-presented shoulder adjacent to said Op bracket-arm providedat 'one' end with an upwardly-presented abutment in contact with one end wall of the recessin said connection-head and bearing below against the opposite end wall of said recess, that end of the bracket-arm being provided with a rounded corner extending between said abutmentand the recess-openingjto per mit the interengagement of said bracketarm with said connection-head by a swing ing movement of the former about the latter, 7

and means carried by the other of said connection heads for releasably locking the other end of said bracket-arm in position.

10. In a' lamp fixture, the combinationwith axially-spaced coaxially-arranged' connection-heads, each of said connection-heads having a bracket-arm recess provided with endwalls, an inner vertical wall, an outwardlyV-presented opening and an inwardlypresented shoulder adjacent to said opening,

of a bracket-arm provided adjacent one end with a cross-section approximately fitting the recess opening of one of said connection-'7 S heid s'jand w it l l i g rdufilly:feduCdlcfoss section; terminatingnink anupwardly-pref wsented abutnie ntin cOntact with one end wall of .the rece's s in; said -.-conecti0 n "head, "said I 1 :35 bracket-armbein nin endwiseajbut ment with s'ajdgipneriyert icalwall; of Jthe recess and bracket-armandjprovided Wit/Ila notch pershdulder, the bther of said conn' ec tibn hed'ds being providedwith a swivelled cap having a 10 flange nterlocking' with the other end of said mitting the introduction andrembjralof that end of th bracket-arm;

WILLIAM SPENCER; 

